Question
How many decibels constitute an air‑bone gap?
Answer
When a 10–15 dB or more difference is measured between the air conduction and bone-conduction thresholds in the same ear, you have an appreciable air-bone gap. This means there likely is a conductive or mixed hearing loss present.
Dr. Ronald Jones is a professor in the Department of Nursing and Allied Health, College of Science, Engineering and Technology at Norfolk State University, Norfolk, Virginia. Dr. Jones' current research and teaching interests include aural rehabilitation management of deaf and hard of hearing children, auditory processing performance of young adults, voice science, and literacy acquisition, particularly, by racial and ethnic minority children.
